Abstract

• The pollutants concentration hotspot of pollution was observed near the road corridor was highest due to its proximity to the centerline of the road and high traffic congestion. • Heavily congested, low-speed manoeuvres resulting in high pollution at the intersection bottleneck. • The health impact assessment conducted on residents identified different occupational groups experiencing health symptoms caused by exposure to hazardous traffic air pollutants. These symptoms serve as evidence of the health burden resulting from exposure to these hazardous traffic-related air pollutants. • The risk of health burden disease for residents near the intersection increases with proximity to the road corridor, prolonged exposure (years spent) in the corridor, daily work duration (over 6 h) and perceived health symptoms (p < 0.05). • Therefore, health impact assessment is important to comprehensively quantify the impact of the air pollutants on the health of the public, especially near roadway.